Refactor dynamic segments listings to doctrine

[MAILPOET-3361]

lib/API/JSON/ResponseBuilders/DynamicSegmentsResponseBuilder.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace MailPoet\API\JSON\ResponseBuilders;
+
+use MailPoet\Entities\SegmentEntity;
+use MailPoet\Entities\SubscriberEntity;
+use MailPoet\Segments\SegmentSubscribersRepository;
+use MailPoet\WP\Functions;
+
+class DynamicSegmentsResponseBuilder {
+  const DATE_FORMAT = 'Y-m-d H:i:s';
+
+  /** @var SegmentsResponseBuilder */
+  private $segmentsResponseBuilder;
+
+  /** @var Functions */
+  private $wp;
+
+  /** @var SegmentSubscribersRepository */
+  private $segmentSubscriberRepository;
+
+  public function __construct(
+    Functions $wp,
+    SegmentSubscribersRepository $segmentSubscriberRepository,
+    SegmentsResponseBuilder $segmentsResponseBuilder
+  ) {
+    $this->segmentsResponseBuilder = $segmentsResponseBuilder;
+    $this->segmentSubscriberRepository = $segmentSubscriberRepository;
+    $this->wp = $wp;
+  }
+
+  public function buildForListing(array $segments): array {
+    $data = [];
+    foreach ($segments as $segment) {
+      $data[] = $this->buildListingItem($segment);
+    }
+    return $data;
+  }
+
+  private function buildListingItem(SegmentEntity $segment): array {
+    $data = $this->segmentsResponseBuilder->build($segment);
+    $data['subscribers_url'] = $this->wp->adminUrl(
+      'admin.php?page=mailpoet-subscribers#/filter[segment=' . $segment->getId() . ']'
+    );
+    $data['count_all'] = $this->segmentSubscriberRepository->getSubscribersCount((int)$segment->getId());
+    $data['count_subscribed'] = $this->segmentSubscriberRepository->getSubscribersCount((int)$segment->getId(), SubscriberEntity::STATUS_SUBSCRIBED);
+    return $data;
+  }
+}